In my Indian patent, I have designed to reduce flue gas temp. in coal based thermal power units by cooling the exit flue gas through a LP economizer, sacrificing multi-flue chimney and replacing the same based on Residual Life Assessment say in every 7 years.This will prove and help in
1. Reducing global warming
2. Reducing fuel consumption by at least 2% and
3. Improving thermal cycle efficiency by 0.8%
The design is to collect residual heat from flue gases much ahead of economizer and ESP, just after ID Fan and before chimney. And we are ready to sacrifice multi-flue metallic chimney being affected by sulfur dew point and replace it, in every 7 years based on residual life assessment. Further in view of installation of FGD(flue gas desulfurisation) plant, this design is more promising for a still less sulfurous attack on chimney walls.
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